SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Look for infection - split - and rupture of the penis
cervix
scrotum
mare estrus
penis and prepuce observation (BSE)
2. Help to signal hormone levels which we need both in the brain right next to each other.
stag
reasons for castration
ewe estrus
hypothalamus and pituitary gland
3. (male) pushes the testes outward toward the legs for a cool-down off of the body
behavioral signs of estrus
cremaster muscle
effects of BST
sperm cell
4. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers
sow estrus
cow ovulation
Where livelihood is in agriculture
reasons for castration
5. 26 hours after estrus begins
mare gestation
ewe ovulation
Size of cow in relation to the amount of milk produced
ewe's estrous cycle
6. Produce testosterone. located between the seminiferous tubules
kidney stones also called ________ ___________ can develop in the sigmoid flexure
4 major reasons for culling dairy cows
leydid or interstitial cells
age and castration
7. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm
polyestrous
burdizzo
scrotal circumference (BSE)
kidney stones also called ________ ___________ can develop in the sigmoid flexure
8. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.
van deferens
seasonally polyestrous
Culls bulls earlier (2 reasons)
spermatogenesis
9. Check feet and legs - look for masculine traits in build such as crest and muscling
vulva
epididymis: definition - 3 parts - 4 functions
visual evaluation (BSE)
Dairy Cattle Gestation
10. Parturition is controlled by...
vagina
Sperm growth rate
Hormones from both the fetus and the mom.
mare gestation
11. 114 days
ewe estrus cycle
sow gestation
urethra
mare estrus
12. FEED
normal presentation of the fetus
cow estrus cycle
ewe's estrous cycle
#1 cost in production
13. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
retractor muscles
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
Dairy calves are removed from cow at birth to...
4 major reasons for culling dairy cows
14. Why does estrus happen before ovulation?
sow ovulation
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
mastitis
kidney stones also called ________ ___________ can develop in the sigmoid flexure
15. Sperm production
prostate gland
estrous
van deferens
spermatogenesis
16. What makes the milk flow through the mammary glands?
vulva
Hormones from both the fetus and the mom.
leydid or interstitial cells
Blood
17. Can survive ~7 days in cow. vast majority <48 hours
Sperm survival specs
mare ovulation
mare estrus
cow estrus
18. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation
estrus
Mares
things to check for in a breeding soundness exam (BSE)
humans: stress level vs sperm
19. 265-285 days
semen evaluation (BSE)
Dairy Cattle Gestation
Lutinizing Hormone in females
prostate gland
20. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood
ewe estrus
dairy cattle pregnancy check
penis proper
cow gestation
21. Prevent the cow from getting an infection from the calve
cow estrus
estrus
Dairy calves are removed from cow at birth to...
#1 cost in production
22. What about the sperm for a bull which has been castrated but still has testicles?
Follical Stimulating in females
prostate gland
Hormones from both the fetus and the mom.
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
23. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.
pelvis
oviducts
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
Size of cow in relation to the amount of milk produced
24. % of fat in milk. makes cheeses and ice cream. regulates cost of milk
organs used in spermatogenesis
butterfat
libido test (BSE)
Brown Swiss Cow
25. Scar tissue plugs up chambers of udder
seasonally polyestrous
visual evaluation (BSE)
prostaglandin
mastitis
26. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)
effects of BST
Blood
what has to happen for males for copulation to occur
prostate gland
27. Depository for semen during insemination. where urine leaves the body
functions of progestrone
~1 month
sow estrus
vagina
28. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.
growth lost from castration methods (knife & band)
cow estrus cycle
pelvis
Parturition
29. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)
Holstein Cow
Follical Stimulating in females
seasonally polyestrous
effects of BST
30. Way to know everything is alright with the breeding male
purpose of Breeding Soundness Exam (BSE) for males
castration
pelvis
stag
31. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.
mare gestation
urethra
functions of progestrone
effects of estrogen
32. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.
cervix
monorchid
testis (gonads)
uterus
33. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days
monestrous
epididymis: definition - 3 parts - 4 functions
libido test (BSE)
ewe gestation
34. Duct through penis that carries sperm and urine
libido test (BSE)
polyestrous
urethra
organs used in spermatogenesis
35. (LH) causes female's egg to break (her period)
mare ovulation
Lutinizing Hormone in females
monestrous
cryptorchid
36. Luteolysis happens because of the ____________ hormone
hormones
prostaglandin
Culls bulls earlier (2 reasons)
humans: stress level vs sperm
37. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.
why does the cow need fat deposits during pregnancy?
oviducts
ewe's estrous cycle
leydid or interstitial cells
38. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)
Lutinizing Hormone in females
sow estrus
accessory sex glands
cow estrus
39. ~60 days before calving
urethra
dry-off time in dairy cattle
Hormones from both the fetus and the mom.
penis proper
40. 10-37 (21) days
mare estrus cycle
dairy cattle pregnancy check
Follical Stimulating in males
normal presentation of the fetus
41. ~60 days before calving
castration
penis sizes vs delivering methods
dry-off time in dairy cattle
pelvis
42. 1-3 days
sow estrus
effects of BST
hormones
femininity of a heifer
43. To remove/separate testicles from animal's body before animal reaches puberty
Size of cow in relation to the amount of milk produced
kidney stones also called ________ ___________ can develop in the sigmoid flexure
castration
epididymis: definition - 3 parts - 4 functions
44. Knife-loose ~1wk of growth. band-loose ~2wks of growth.
sertoli cells
estrous
organs used in spermatogenesis
growth lost from castration methods (knife & band)
45. 1. brain function - 2. blood flow - 3. willing female
rectal palpation (BSE)
seminiferous tubules
Grading choice
what has to happen for males for copulation to occur
46. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.
Culls bulls earlier (2 reasons)
penis and prepuce observation (BSE)
vagina
ewe estrus cycle
47. (male) pushes the testes upward toward the body for warmth or protection
urethra
hormones
dartos muscle
functions of progestrone
48. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co
retractor muscles
Size of cow in relation to the amount of milk produced
effects of BST
sperm cell
49. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total
Avg. bull specs
elastrator
testis (gonads)
functions of progestrone
50. 283 days
cow gestation
Avg. bull specs
dry matter and water
6-8 weeks